Semiconductor memory having redundancy
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United States of America Patent
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Mar 22, 1988
Grant Date -
N/A
app pub date -
Aug 6, 1986
filing date -
Aug 23, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Herein disclosed is a bipolar memory having redundancy, which can be produced with a small area. In this semiconductor memory having a body memory for storing data and a spare memory for relief of fault bit of the body memory, a row is selected by cutting fuses in a decoder. Fundamentally signal lines such as word lines are not provided with fuses. Other parts including a power source and a reference voltage source are provided with fuses without decreasing the operating speed accompanied by only a slight increase in the area.
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